Irish regiment takes their positions in trenches during the Battle of Ancre,in World War I. A Mark I tank is seen..

Troops of Irish Regiment take up their positions in the trenches during the Battle of Ancre, in World War 1. Soldiers from Ireland light a fire under a cooking pot that is set in a cut out section of the trench wall. Two soldiers and an officer board a camouflaged British Mark I tank (male). The officer carries a mascot black cat on his shoulder. 37mm gun of the tank is moved from side to side and up and down, in the tank sponson.